69-0653 - MagicStat CT3200 Programmable Thermostat ... - Geisel

MagicStat ® CT3200 Programmable Thermostat
Installation and Programming Instructions
Weekday/Weekend (5-day/2-day)
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac)
Thermostat and Mounting Plate
Model CT3200
Table of Contents
Welcome to the world of comfort and energy savings
with your new Honeywell MagicStat® Programmable
Thermostat. Your new thermostat will automatically
control the temperature in your home, keeping you
comfortable while saving energy.
If you have any questions about using this thermostat,
visit our home expert Web site at
www.honeywell.com/yourhome or call Honeywell
Customer Relations at 1-800-468-1502.
Installation 2
Programming 11
Operation 17
Change the clock for Daylight/ 17
Standard Time
Set the Fan and System switches 17
Replace the batteries 18
Override the program settings 19
Frequently asked questions 21
Limited 1-Year Warranty 23
®U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
69- 0653- 6

Fig. 1
MERCURY
SWITCH
Recycling Thermostat
If you are removing an old thermostat that contains mercury in a
sealed tube (Fig. 1), do not place the old thermostat in the trash.
Contact your local waste management authority for instructions
regarding recycling and the proper disposal of the old thermostat.
M3701
Installation
Verify that you have the right thermostat
Make sure that the CT3200 is the right thermostat for your heating/cooling system. Read the compatibility chart below to
determine which system you have. If your system is not compatible with the CT3200, the table recommends an alternate
Honeywell model. If you are unsure what type of thermostat is right for your system, visit us on the Web at
www.honeywell.com/yourhome or call Honeywell Customer Relations at 1-800-468-1502.
Heating/Cooling System
Conventional
Single stage systems that include warm air furnaces and hot water.
Electric Baseboard
Electric powered heating strips located just above the floor, usually 120 to 240 volts.
Steam
A steam boiler with radiator heat.
Heat Pump
Heating and cooling are produced from the same outdoor unit (compressor) with no
auxiliary or backup heat.
Multistage Heat Pump
Heating and cooling are produced from the same outdoor unit (compressor) with
auxiliary or backup heat.
Multistage Conventional
A heating or cooling system with more than one stage.
Compatible
with CT3200?
Yes
No
No
No
No
No
Alternate
model
CT1950 for
240 volts
CT3600
CT3600
CT3611
See your
contractor
2 INSTALLATION 69-0653-6

Step 1. Prepare for installation
a. Carefully unpack your new thermostat. Save your receipt and make sure you have the following parts:
• Thermostat and mounting plate
• Labels
b. Gather the needed tools and supplies listed below.
• Screws and anchors
• Installation and Programming Instructions
Required tools and supplies
• Two AA alkaline batteries. Honeywell recommends Energizer®
batteries.
• Screwdriver
• Hand or power drill with 3/16-inch or 7/32-inch drill bit
• Pencil
Optional tools
• Wire cutter/stripper or sharp knife
• Level
• Electrical tape
c. Make sure that your heating and cooling systems are working properly. If there is a problem with either system, call a
heating/air conditioning contractor—the problem may persist after you install the new thermostat.
IMPORTANT: To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the
temperature outdoors is below 50°F (10°C).
69-0653-6 INSTALLATION 3

Step 2. Remove the old thermostat
Fig. 2
Fig. 3
Fig. 4
WIRES THROUGH
WALL OPENING
M20133
M20140
M19086
a. Turn off power to the heating/cooling system, either at the
furnace or at the fuse/circuit breaker panel.
b. Remove the cover of your old thermostat (Fig. 2).
c. Unscrew and remove the old thermostat’s mounting plate from
the wall, but do not disconnect the wires.
d. Inspect the old thermostat wiring. If the wiring meets any of
the following conditions, see the special wiring
instructions on page 9.
• The old thermostat is a clock thermostat with wires attached
to the C or C1 terminals.
• The old thermostat has 6 or more wires, excluding wires
attached to C or C1 terminals.
• The old thermostat has 3 wires.
• There are 5 wires connected to the old thermostat.
• There are extra wires that are not connected to the old
thermostat.
e. Using the enclosed labels, mark the wires with the letter of the
terminal that it is attached to on the old thermostat (Fig. 3). Do
not label the wires by color.
If the labels do not match the letters on the old thermostat
terminals, see the wiring cross reference table on page 10.
f. Disconnect the wires from the old thermostat and wrap the
wires around a pencil to keep them from falling back into the
wall.
Note: Remember, if your old thermostat contains mercury, you
must recycle it. See page 2 for more recycling information.
✓ Check your progress
Your wall should now look like Fig. 4.
4 INSTALLATION 69-0653-6

Step 3. Install the mounting plate
Fig. 5
Fig. 6
Fig. 7
M20139
M20129
a. Separate the mounting plate from the thermostat using a coin,
as shown in Fig 5.
b. Position the mounting plate on the wall. Be sure the mounting
plate sits flush against the wall and none of the wires are
trapped behind it.
c. Level the mounting plate and use a pencil to mark the center of
the mounting plate’s screw holes.
d. Remove the mounting plate and drill holes at the locations you
marked.
• For drywall, drill two 3/16 inch holes.
• For plaster or wood, drill two 7/32 inch holes.
e. If installing in drywall, gently tap the anchors that were provided
into the drilled holes until they are flush with the wall.
f. Reposition the mounting plate over the holes, pull the wires
through the wiring opening, and loosely insert the mounting
screws into each of the drilled holes or anchors (Fig. 6).
g. Make sure the mounting plate is level and tighten the mounting
screws.
✓ Check your progress
The mounting plate is now mounted on the wall and should look like
Fig. 7.
Y
Rc
G
R
W
M20128
69-0653-6 INSTALLATION 5

Step 4. Set the thermostat for your type of heating system
Fig. 8
DISPLAY F
DISPLAY C
C–IN
C–OUT
1 TURN
FOR HIGH EFFICIENCY FURNACE (90%+ AFUE)
ADJUST: SCREW A–OUT ONE TURN
SCREW B–IN
FUEL SWITCH – F POSITION
FUEL SWITCH
F
E
FUEL SWITCH
HEATING
SYSTEM TYPE
THERMOSTAT BACK
A C
B D
SELECTING ºF OR ºC
ADJUST SCREWS THROUGH HOLES
TO SELECT OPERATION DESIRED
FUEL SWITCH
HEATING SYSTEM POSITION
WARM AIR
FURNACE
HOT WATER
BOILER
ELECTRIC
FURNACE
W Y G
R
A–IN B–IN
A–OUT B–IN
1 TURN
A–IN B–OUT
1 TURN
F
F
E
Rc
M20145
IMPORTANT: Setting your thermostat correctly for your type of
heating system allows it to maintain accurate temperature control,
minimize swings in the temperature of the room, and efficiently run
the fan.
a. Use the FUEL SWITCH on the back of the thermostat to set
your new thermostat for the type of fuel that your heating
system uses: F–gas or oil, or E–electricity.
Note: This setting enables proper fan operation.
b. Use the A and B screws on the back of the thermostat to set
your new thermostat for your type of heating system. See the
Heating System Table on the next page to find the correct
settings.
Note: These screws are factory-set for a warm air, gas, or oil
heating system.
c. The thermostat is set to display the temperature in degrees
Fahrenheit (°F). If you want to display the temperature in
degrees Celsius (°C), adjust screw C out one turn.
d. You can install the batteries and program your thermostat now,
or you can wait until the thermostat is mounted on the wall. To
install the batteries, see the instructions on page 8. To program
the thermostat, see the instructions that begin on page 12.
6 INSTALLATION 69-0653-6

Heating System Table
Note: Setting the screw “out one turn” means turning the screw 360° counter-clockwise, or one complete turn.
Type of system Screws A and B Fuel switch
Warm air, gas, or oil heating system with an efficiency rating under 90%.
(The furnace efficiency rating should be on the furnace.)
High-efficiency furnace such as a 90% or greater AFUE (Average Fuel
Utilization Efficiency) unit
Hot water boiler
Electric furnace
Use factory setting
A–leave in
B–leave in
A–out one turn
B–leave in
A–out one turn
B–leave in
A–leave in
B–out one turn
F
F
F
E
Step 5. Wire the thermostat terminals
Fig. 9
Fig. 10
5/16 in.
(8 mm)
STRIP
INSERT
STRAIGHT
UNDER
SCREW HEAD
R
G
Y
W
M20125
a. Hold the thermostat as shown in Fig. 9.
b. Using the labels on the wires, match the letter of your old
thermostat wire with the corresponding terminal on the back of
your new thermostat.
Note: If the letters on the old thermostat terminals do not match
the letters on the new thermostat terminals, you might not need
to connect all of the old wires to the new thermostat. See the
special wiring instructions on page 9 for details.
c. Loosen the terminal screws and slip each wire beneath its
matching terminal (Fig 10).
d. Securely tighten the terminals.
END OF WIRE
VISIBLE HERE
M20126
69-0653-6 INSTALLATION 7

Step 6. Mount the thermostat
Fig. 11 Fig. 12
a. Align the tabs at the top of the thermostat with the tabs at the
top of the mounting plate (Fig. 11).
b. Press the lower edge of the case to latch the bottom of the
thermostat (Fig. 12).
M20130
M20131
Step 7. Install the batteries
Fig. 13
Fig. 14
M1719C
REMOVING
BATTERY
DOOR
IMPORTANT: Batteries must be installed for programming and
operation of the thermostat and heating/cooling system.
Honeywell recommends using Energizer® batteries.
a. Make sure that the System switch is set in the OFF position.
b. Using a coin, open the battery door as shown in Fig. 13.
c. Install the batteries.
Make sure that the positive and negative terminals are oriented
correctly as marked inside the battery case.
d. Replace the battery door.
e. Remove the clear plastic label from the digital display.
✓ Check your progress
When the batteries are installed correctly, the digital display flashes
all entries once, then begins to flash a default time and the current
temperature (Fig. 14). The flashing continues until you begin to
program the thermostat.
You are now ready to program the thermostat. Go to page 12.
8 INSTALLATION 69-0653-6

Special wiring instructions
A clock thermostat with C or C1 terminals
A clock thermostat has one or two extra wires attached to the C or C1 terminals that allow the clock to operate. These
wires are not used during the installation of your new 3200 thermostat and must be insulated from each other to avoid
damaging your electrical circuit.
a. Make sure that power to the heating/cooling system is turned off.
b. Locate the wires that are connected to the clock terminals marked C or C1.
c. As you disconnect the wires, do not allow these wires to touch.
d. Wrap the wires separately, using electrical tape to insulate the wires.
e. Place the wires where they will not interfere with the operation of the new thermostat.
You will not connect these wires to your 3200 thermostat.
f. Continue with the installation as instructed on page 4 at step 2e.
Six or more wires
If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your heating/cooling
system is most likely a variation of a heat pump or multistage system. Your 3200 thermostat will NOT work with such
systems and should be returned to the place of purchase. See the compatibility table on page 2 for information about which
programmable thermostat WILL work with your system.
Three thermostat wires
If you have three wires for heating only and can operate the fan using the fan ON switch, the 3200 thermostat will work with
your system. Continue the installation procedure on page 4, step 2e.
If you have a three-wire heating-only system and cannot operate the fan using the fan ON switch, the 3200 thermostat will
probably NOT work with your system. Contact your heating contractor for installation assistance.
Wires that are not connected to the old thermostat
If there are extra wires that do not connect to your old thermostat, do not label them. You will not connect these wires to
your new thermostat. Tape off the wires with electrical tape and place them where they will not interfere with the operation
of the new thermostat. Continue the installation procedure on page 4, step 2e.
69-0653-6 INSTALLATION 9

Five wires connected to the old thermostat
Your new thermostat has a factory-installed metal jumper between the R and Rc terminals (Fig. 15). Remove the jumper
before wiring the R and Rc terminals.
JUMPER (FACTORY-
INSTALLED). REMOVE
IF 5-WIRE SYSTEM
Fig. 15
R R c
W Y G
M20127
Old thermostat terminals that do not match new thermostat terminals
Use the table below to wire the new thermostat.
Old thermostat
terminal
Connect to new
thermostat terminal
Description
R, RH, 4, V R* Power
Rc, R Rc* Power for cooling
W, W 1 , H W Heat
Y, Y 1 , M Y Cooling
G, F G Fan
O
Do not continue Changeover in cool (O terminal) or changeover in heat (B terminal).
B
installation
You have a single stage heat pump or zoning system. See page 2 for an
alternate thermostat model.
C, X, B Do not connect Transformer common.
W 2 , H 2
Y 2
Do not continue
installation.
Second stage heat (W 2 , H 2 ) or second stage cooling (Y 2 ).
You have a multistage heating/cooling system. See page 2 for an alternate
thermostat model.
*Remove factory-installed jumper between R and Rc terminals in 5-wire systems.
10 INSTALLATION 69-0653-6

Programming
Faceplate illustration and descriptions
Fig. 16
7 8
Descriptions
6
5
4
3
Set
clock/Day
AM
PM
SET
MO TU WE TH FR SA SU
WAKE LEAVE RETURN SLEEP
Time
Ahead
Temp
Warmer
SYSTEM ON
TEMPORARY
Run
Program
9
10
11
12
1 Fan switch–Selects automatic fan operation or fan on
(page 17)
2 Set Schedule–Puts the thermostat into programming
mode (page 14)
3 Set Clock/Day–Sets the clock and day (page 12)
4 Time Ahead and Back–Sets the time ahead and
back (page 12)
2
Set
Schedule
Back
Cooler
Hold
Temp
13
5 Program periods–Current program period or period
being programmed (page 13)
1
Fan
Auto On
System
Cool Off Heat
14
6 Day of the week–Current day or day being
programmed
7 Time–Current time or program time
M20141
8 Temperature–Room temperature or programmed
temperature
9 SYSTEM ON–An arrow displays when the heating/
cooling system is running (page 16)
10 TEMPORARY–An arrow displays when a temporary
override is made to the program (page 19)
11 Temp Warmer and Cooler–Sets the temperature
warmer and cooler (page 14)
12 Run Program–Returns thermostat to normal
operating mode
13 Hold Temp–Holds a selected temperature (page 19)
14 System switch–Selects Cool, Off, Heat (page 18)
69-0653-6 PROGRAMMING 11

Step 1. Set the current time and day
a. Press once.
The time is displayed (Fig. 17).
Fig. 17
b. Press and hold or until the current time is
displayed.
c. Press again.
The day is displayed (Fig. 18).
Fig. 18
d. Press and hold or until the current day is
displayed.
e. Press once.
The current time and day and the current temperature are
displayed (Fig. 19).
Fig. 19
Step 2. Learn about the programming features
Your 3200 thermostat allows you to program schedules for both a heating season and a cooling season.
• During the heating season, you will want to set the normal room temperature higher and the energy-saving
temperature lower.
• The reverse is true during the cooling season—the normal room temperature will be lower and the energy-saving
temperature higher.
For each season, you can set up to four program periods for the weekdays (Monday–Friday), and up to two program
periods for the weekends (Saturday and Sunday). The program periods are defined on the next page.
12 PROGRAMMING 69-0653-6

Program period Description When available
WAKE
LEAVE
RETURN
SLEEP
The time when you get up and get ready to leave your home.
You can set the system at a comfortable temperature for this
period.
The time when you are regularly away from home. You can set
up an energy-saving temperature for this period.
The time between returning home and going to bed. You can
set the system at a comfortable temperature for this period.
The time when you are sleeping. You can set up an energysaving
temperature for this period.
Weekdays and weekend
Weekdays only
Weekdays only
Weekdays and weekend
Programming tips
• You do not need to program times and temperatures for all program periods.
If you decide not to program your thermostat, it will automatically control heating at 68°F (20°C), and cooling at 78°F
(26°C), 24 hours a day.
If you decide not to program weekend schedules, the temperature that is programmed for the weekday SLEEP
schedule will remain in effect until the next program period, which begins on Monday morning.
• The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).
• When pressing the buttons, use the ball of your finger or a soft pencil eraser. Use of sharp fingernails or pencil points
can damage the keypad.
• If you make an error at any time during programming, press . Then press until you reach the program
period where you left off.
69-0653-6 PROGRAMMING 13

Step 3. Program the heating schedule
a. Write in the times and temperatures that you want to program for your heating schedule.
Heating
Schedule
Suggested
Settings
Weekday
(Mon–Fri)
Weekend
(Sat–Sun)
Program
period
WAKE LEAVE RETURN SLEEP
Time 6:00 AM 8:00 AM 6:00 PM 10:00 PM
Temp 70°F (21°C) 62°F (16.5°C) 70°F (21°C) 62°F (16.5°C)
Time
Temp
Time
Temp
b. Set the System switch to HEAT.
Fig. 20
c. Press once.
A blank schedule is displayed (Fig. 20).
d. Set the Monday–Friday WAKE time by pressing or
Fig. 21
until the desired time is displayed (Fig. 21).
e. Set the Monday–Friday WAKE temperature by pressing
or until the desired temperature is
displayed.
f. Press to display a blank schedule for the next
program period (Fig. 22) and repeat steps d. through f. for
each weekday program period.
Fig. 22
14 PROGRAMMING 69-0653-6

g. Press until the weekend schedule is displayed
(Fig. 23).
h. Set the Saturday and Sunday WAKE time by pressing
or until the desired time is displayed.
i. Set the Saturday and Sunday WAKE temperature by
Fig. 23
Fig. 24
pressing or until the desired temperature
is displayed (Fig. 24).
j. Press again to display a blank schedule for the
SLEEP program period and repeat steps h. through j. to set
the program.
k. Press to start the program.
Step 4. Program the cooling schedule
a. Write in the times and temperatures that you want to program for your cooling schedule.
Cooling
Schedule
Suggested
Settings
Weekday
(Mon–Fri)
Weekend
(Sat–Sun)
Program
period
WAKE LEAVE RETURN SLEEP
Time 6:00 AM 8:00 AM 6:00 PM 10:00 PM
Temp 78°F (25.5°C) 85°F (29.5°C) 78°F (25.5°C) 82°F (28°C)
Time
Temp
Time
Temp
69-0653-6 PROGRAMMING 15

. Set the System switch to COOL.
c. Repeat steps 3c. through 3k. to program the weekday and weekend cooling schedule.
Step 5. Check out the system
Verify that your heating system works
a. Set the System switch to HEAT, and the Fan switch to
AUTO.
b. Press until the setting is 10°F (6°C) above room
temperature (Fig. 25).
Your heating system should start and the fan should run
after a short delay.
Fig. 25
c. Press until the setting is 10°F (6°C) below room
temperature.
Your heating system should shut off.
Verify that your cooling system works
IMPORTANT: To avoid damaging the compressor in the air
conditioner, do not operate the cooling system when the
temperature outdoors is below 50°F (10°C).
d. Set the System switch to COOL, and the Fan switch to
AUTO.
Fig. 26
e. Press until the setting is 10°F (6°C) below room
temperature (Fig. 26).
Your cooling system and fan should start.
Note: When the cooling setting is changed, the thermostat
may delay up to 5 minutes before turning on the air
conditioner. This delay protects the compressor.
16 PROGRAMMING 69-0653-6

f. Press until the setting is 10°F (6°C) above room
temperature.
Your cooling system and fan should stop.
g. Set the System switch to OFF and the Fan switch to AUTO.
The cooling system and fan should be off.
Operation
Change the clock for Daylight/Standard time
a. Press once.
The time is displayed.
b. Press and hold or until the correct time is displayed.
c. Press once.
The current time and day and the current temperature are displayed.
Set the Fan and System switches
The switches on the bottom of the thermostat faceplate (Fig. 16 page 11) control the operation of your fan and the heating
and cooling system. Set the Fan switch first and then set the System switch.
Switch Setting Result
Fan Auto A single-speed fan turns on automatically with the air conditioner or furnace.
A two-speed fan usually runs on high with the air conditioner and on low with the furnace.
Auto is the normal setting for most homes.
On The fan runs continuously. Use this setting for improved air circulation during special occasions
or for more efficient air cleaning.
Note: In a heat-only system, the fan runs continuously only if the fan wire has been connected to
the G terminal on the back of the thermostat.
69-0653-6 OPERATION 17

Switch Setting Result
System Cool The thermostat controls your air conditioning system.
Off Both the heating and air conditioning systems are off.
Heat The thermostat controls your heating system.
Replace the batteries
As the batteries run low, your thermostat shows the following in the digital display:
If you see:
Batteries are: You should:
Flashing “bAt Lo” Low Replace the batteries as soon as possible, within the month.
Steady “bAt Lo” Almost dead Replace the batteries immediately. Your heating/cooling system is not operating.
Blank display Dead Replace the batteries immediately. Your heating/cooling system is not operating.
a. Make sure that the System switch is set in the OFF position.
b. Open the battery door.
c. Press on the left side of the batteries to remove them.
d. Install the new batteries.
Make sure that the positive and negative terminals are oriented correctly as marked inside the battery case.
Note: If you insert the new batteries within 20–30 seconds of removing the old ones, you will not have to reprogram
the thermostat. However, if the display is blank, the batteries are dead or incorrectly installed and you will have to
reprogram. See page 12 to begin reprogramming.
e. Close the battery door and set the System switch to HEAT or COOL.
Note: If “bAt Lo” continues to display after replacing the batteries, set the System switch to OFF, insert the batteries
backwards, wait for five to ten seconds, and return the batteries to their correct orientation. Then see page 12 to begin
reprogramming.
IMPORTANT: Replace the batteries once a year to prevent the heating/cooling system from shutting down due to lack of
battery power in the thermostat. If you are leaving home for longer than a month, change the batteries before leaving to
prevent the system from shutting down due to lack of power.
18 OPERATION 69-0653-6

Override the program settings
Note: Make sure the System switch is set to either HEAT or
COOL before making any changes to the schedule.
Change the temperature temporarily
Press or until the desired temperature is
displayed.
An arrow is displayed indicating that the change is temporary
(Fig. 27).
Note: A temporary change to the temperature lasts for the
current program period only. The heating/cooling schedule that
you programmed resumes when the next scheduled program
period is reached. To cancel the temporary change before the
next scheduled program period, press .
Fig. 27
Hold a temperature indefinitely
Use the Hold Temp feature when you want to maintain a
constant temperature indefinitely, such as when you go on
vacation.
a. Press .
“HLd” is displayed (Fig. 28).
Fig. 28
b. Press or until the desired temperature is
displayed.
Note: To cancel the hold, press .
69-0653-6 OPERATION 19

Check the current programmed temperature
Press to display the temperature that is programmed
for the current program period. The SET indicator displays
briefly along with the programmed temperature (Fig. 29). The
display then returns to the room temperature.
Fig. 29
Check programs
Press repeatedly to display the times and temperatures
that you programmed.
Press to resume the program.
Cancel a program
Fig. 30
a. Press until the desired program is displayed (Fig
30).
b. Press and simultaneously.
A blank program schedule is displayed and the program is
canceled (Fig. 31).
Fig. 31
Change a program permanently
Follow the steps for programming the heating schedule or
programming the cooling schedule on pages 14 and 15.
20 OPERATION 69-0653-6

Frequently asked questions
If...
Then...
Display will not come on • Make sure the batteries are fresh and installed correctly.
• Set the System switch to OFF. Remove the batteries and then insert them
backwards for five to ten seconds to reset the thermostat. Replace the
batteries correctly. The display should come on.
Temperature display will not go
lower than 45°F (7°C) or higher
than 88°F (31°C) during
programming
Display shows flashing or steady
“bAt Lo”
Temperature change occurs at the
wrong times
• You have reached the temperature limit. The setting range is 45°F–88°F
(7°C–31°C).
• The batteries are low; replace them as soon as possible. See page 18 for
instructions.
• If “bAt Lo” continues to display after replacing the batteries, set the System
switch to OFF and insert the batteries backwards for five to ten seconds.
Then replace the batteries correctly. The display should come on.
• Check the program times for the period in question. Be sure that the AM and
PM indications are correct. Make sure the current day and time are correct.
Reprogram if necessary.
Heating will not come on • Check that the System switch is set to HEAT.
• Check the system fuse or circuit breaker and replace or reset if necessary.
• Check for correct wiring and good connections.
• If display is blank or displays “bAt Lo,” install fresh batteries.
• Allow time for the furnace to heat up and the fan to come on before checking
for heat at the register.
• If the temperature setting is higher than the current room temperature and
the SYSTEM ON arrow is displayed, the thermostat is operating correctly.
Contact a heating contractor for assistance.
69-0653-6 FREQUENTLY ASKED QUESTIONS 21

If...
Cooling will not come on • Check that the System switch is set to COOL.
• Check the system fuse or circuit breaker and replace or reset if necessary.
• Check for correct wiring and good connections.
• If display is blank or says “bAt Lo,” install fresh batteries.
• The thermostat has a built-in time delay on cooling. Allow 5 to 10 minutes
after changing the setting before the air conditioner starts.
• If the temperature setting is lower than the current room temperature and the
SYSTEM ON arrow is displayed, the thermostat is operating correctly.
Contact an air conditioning contractor for assistance.
The house is too warm or too cool
The furnace cycles too frequently
or the system cycle length is too
short or too long
The thermostat’s current setting
does not match the display
temperature to within plus or minus
1°
Then...
• Press to check the current temperature setting.
• If desired, change the temperature setting. See page 19 for instructions.
• Adjust the screws on the back of the thermostat as instructed on page 7.
• Plug the wiring hole in the wall behind the mounting plate with insulation to
prevent drafts that might adversely affect thermostat operation.
• Be aware that it is normal for the current setting and the displayed room
temperature to differ on occasion.
• During recovery from setback or setup, setting and displayed room
temperatures may differ for up to 30 minutes after recovery period.
Customer assistance
For all questions concerning this thermostat, please read and follow the instructions. If you need additional assistance, call
Honeywell Customer Relations at 1-800-468-1502, Monday–Friday, 7:00 AM–5:30 PM Central Time, or visit us at
www.honeywell.com/yourhome. Before you call, please have the following information available:
• Thermostat model number and serial code (located under the battery cover)
• Type of heating/cooling system (hot water, warm air, oil, gas, etc.)
• Number of wires connected to the thermostat
NOTICE: This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c.1374.
22 FREQUENTLY ASKED QUESTIONS 69-0653-6

Limited warranty
Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service,
for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective
or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the retailer from which you purchased it, or
(ii) package it carefully, along with proof of purchase (including date of purchase) and a short description of the malfunction, and mail it,
postage prepaid, to the following address:
Honeywell Inc. USA
Honeywell Canada:
Dock 4 — MN10-3860
Honeywell Limited/Honeywell Limitée
1885 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422-3992 Scarborough, Ontario M1V 4Z9
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or
malfunction was caused by damage which occurred while the product was in the possession of a consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE
LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING,
DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS
PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to
you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY
IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS
HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write our Customer Relations Center, Honeywell Inc., 1885 Douglas Dr. N.,
Golden Valley, MN 55422-3992, or call 1-800-468-1502, Monday–Friday, 7:00 a.m. to 5:30 p.m., Central Time. In Canada, write Retail
Products ON30 Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
69-0653-6 FREQUENTLY ASKED QUESTIONS 23

Home and Building Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
69-0653-6 Rev. 9-01
Home and Building Control
Honeywell Limited–Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario
M1V 4Z9
Printed in the U.S.A.
www.honeywell.com/yourhome